A toolkit for phase-based feature detection
This toolkit consists of a set of functions which use information contained within the phase of a Fourier-transformed image to detect localised features such as edges, blobs and corners. These methods have the key advantage that the properties they measure are invariant with respect to image brightness and contrast.
|phasecong:||Phase congruency using oriented filters|
|phasecongmono:||Fast phase congruency using monogenic filters|
|phasesym:||Phase symmetry using oriented filters|
|phasesymmono:||Fast phase symmetry using monogenic filters|
For more information on a particular function, see the associated docstring and the references therein.
$ python setup.py install
Fast(er) Fourier Transforms
All of the functions in this module make use of the Fast Fourier Transform (FFT), and their speed significantly depends on the module used to provide FFT functions. If it is available, the pyFFTW module will be used. This provides Python bindings to the FFTW C library, and is substantially faster than fftpack, the default for scipy.
To install pyFFTW:
$ pip install pyfftw
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
The software is provided “as is”, without warranty of any kind.
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